Hi

Hoping someone can help me here.

A customer of ours needs to know the capacity (ie total volume) of the inner vessels of two vacuum-insulated pressure vessels he has taken possession of . No documentation etc,, has asked if we can help. Unable to access the inner vessel for geometric dimensioning as contained within an outer vessel. Can estimate but he insists he requires an accurate measurement . Don't really want to fill with water as will then have to ensure all is removed ( heating etc ), so not ideal.

Can anyone suggest possible ways of measuring the volume of the inner vessels ? Capacities are approx 8100L and 7900L

Thanks

How accurate do you want to measure?

If you fill the two vessels to some point, how will you mark that level so you will refill the two back to the same level each time?

Ideally to the order of +/- 10 Litres if possible.

The vessels should be fitted with a 95% Trycock line, so when filling , operator knows when to stop. However, not always very accurate, and as mentioned, don't want to fill with water .

Pressurize with bottled gas, note pressure reached and volume used, calculate volume at atmospheric?

To +/- 10L, I doubt it:)

Regards,

Mike

Laser rangefinder? 3D laser scan?

Shove a pipe in the nozzle until it hits the far wall to get inner diameter, drop a string with a weight on the end to get depth?

Are they cylindrical?

Connect a 55 gallon drum to your vessel. Use a garden hose to fill the drum and displace the air into your vessel. Use a manometer to measure the increase in air pressure in the vessel. Calculate the volume of the vessel from the pressure rise due to adding a known volume of gas.

Try with electronic load cell.

Regards

rhg

Use another liquid such as parafin.

Can you fill it with sand?

saludos.
a.